- A
Switch from rolling to immutable updates.
Why wrong: Immutable updates change the deployment strategy, which may be more than what is asked for stability improvement.
- B
Increase the health check interval to allow more time for the application to stabilize.
Longer health check interval prevents premature health status degradation.
- C
Increase the batch size to 75%.
Why wrong: Larger batch size increases the number of instances updated at once, amplifying potential issues.
- D
Decrease the deployment cooldown time.
Why wrong: Decreasing cooldown gives less time for instances to stabilize, likely worsening health status.
- E
Decrease the batch size to 25%.
Smaller batch size reduces the number of instances updated simultaneously, making health checks less likely to fail.
Quick Answer
The answer is to decrease the batch size to 25% and increase the health check interval. Reducing the batch size from 50% to 25% directly improves Elastic Beanstalk rolling deployment stability by limiting the number of instances replaced at once, which minimizes the blast radius of any configuration or application error during the update. Increasing the health check interval gives the newly deployed instances more time to fully initialize and pass application-level checks before Elastic Beanstalk evaluates their health, preventing the intermittent 'Severe' status caused by premature health evaluations. On the AWS Certified DevOps Engineer Professional DOP-C02 exam, this question tests your ability to fine-tune rolling update parameters without changing the deployment strategy—a common trap is selecting immutable updates, which redesigns the process entirely. Remember the memory tip: "Smaller batches, longer waits" keeps your rolling updates stable and your health checks patient.
DOP-C02 Configuration Management and IaC Practice Question
This DOP-C02 practice question tests your understanding of configuration management and iac. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company is using AWS Elastic Beanstalk for a production environment. They have observed that during deployments, the environment's health status intermittently becomes 'Severe' even though the application is functioning correctly. The deployment uses rolling updates with a batch size of 50%. Which TWO configuration changes would improve deployment stability without completely redesigning the deployment process? (Select TWO.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Increase the health check interval to allow more time for the application to stabilize.
Option A is correct because decreasing the batch size reduces the number of instances updated at once, limiting the impact of potential issues. Option D is correct because increasing the health check interval gives the application more time to stabilize before Elastic Beanstalk marks it as unhealthy. Option B (immutable updates) completely changes the deployment strategy, which may not be desired. Option C (decreasing cooldown) could worsen stability. Option E (increasing batch size) would increase instability.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Switch from rolling to immutable updates.
Why it's wrong here
Immutable updates change the deployment strategy, which may be more than what is asked for stability improvement.
- ✓
Increase the health check interval to allow more time for the application to stabilize.
Why this is correct
Longer health check interval prevents premature health status degradation.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Increase the batch size to 75%.
Why it's wrong here
Larger batch size increases the number of instances updated at once, amplifying potential issues.
- ✗
Decrease the deployment cooldown time.
Why it's wrong here
Decreasing cooldown gives less time for instances to stabilize, likely worsening health status.
- ✓
Decrease the batch size to 25%.
Why this is correct
Smaller batch size reduces the number of instances updated simultaneously, making health checks less likely to fail.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Identify which DOP-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
- →
Configuration Management and IaC — study guide chapter
Learn the concepts, then practise the questions
- →
Configuration Management and IaC practice questions
Targeted practice on this topic area only
- →
All DOP-C02 questions
1,740 questions across all exam domains
- →
AWS Certified DevOps Engineer Professional DOP-C02 study guide
Full concept coverage aligned to exam objectives
- →
DOP-C02 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related DOP-C02 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Configuration Management and IaC practice questions
Practise DOP-C02 questions linked to Configuration Management and IaC.
Resilient Cloud Solutions practice questions
Practise DOP-C02 questions linked to Resilient Cloud Solutions.
Monitoring and Logging practice questions
Practise DOP-C02 questions linked to Monitoring and Logging.
Incident and Event Response practice questions
Practise DOP-C02 questions linked to Incident and Event Response.
Security and Compliance practice questions
Practise DOP-C02 questions linked to Security and Compliance.
SDLC Automation practice questions
Practise DOP-C02 questions linked to SDLC Automation.
DOP-C02 fundamentals practice questions
Practise DOP-C02 questions linked to DOP-C02 fundamentals.
DOP-C02 scenario practice questions
Practise DOP-C02 questions linked to DOP-C02 scenario.
DOP-C02 troubleshooting practice questions
Practise DOP-C02 questions linked to DOP-C02 troubleshooting.
Practice this exam
Start a free DOP-C02 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this DOP-C02 question test?
Configuration Management and IaC — This question tests Configuration Management and IaC — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Increase the health check interval to allow more time for the application to stabilize. — Option A is correct because decreasing the batch size reduces the number of instances updated at once, limiting the impact of potential issues. Option D is correct because increasing the health check interval gives the application more time to stabilize before Elastic Beanstalk marks it as unhealthy. Option B (immutable updates) completely changes the deployment strategy, which may not be desired. Option C (decreasing cooldown) could worsen stability. Option E (increasing batch size) would increase instability.
What should I do if I get this DOP-C02 question wrong?
Identify which DOP-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Keep practising
More DOP-C02 practice questions
- A company uses AWS CodePipeline with a multi-branch strategy. A new feature branch triggers a pipeline that runs unit te…
- A development team uses AWS CodeBuild to compile a Java application and run unit tests. The build takes 30 minutes, but…
- A company uses AWS CodePipeline with multiple stages: Source (Amazon S3), Build (AWS CodeBuild), and Deploy (AWS CodeDep…
- A company uses AWS CodeCommit for source control. Developers frequently push large binary files (e.g., compiled JARs) to…
- An organization uses AWS CodePipeline to orchestrate deployments to multiple environments (dev, test, prod). Each enviro…
- A company uses AWS Key Management Service (KMS) to encrypt data at rest in Amazon S3. The security team wants to ensure…
Last reviewed: Jun 20, 2026
This DOP-C02 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DOP-C02 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.